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46 / 49cc P.O . Box 31567 • Tucson Arizona 85751 - 1567 • U.S.A . GASOLINE POWERED ANTI - VIBRATION ( AV ) CHAIN SAWS • MANUFACTURING • SALES • SERVICE • FOR WARRANTY OR SERVICE , CONTACT THE NEAREST McCULLOCH AUTHORIZED SERVICE CENTER LISTED UNDER ‘ SAWS ’ IN YOUR TELEPHONE DIRECTORY YELLOW PAGES . IF FURTHER ASSISTANCE IS REQUIRED , CALL THIS TOLL - FREE HOT LINE . PLEASE REFERENCE YOUR MODEL AND SERIAL NUMBER . ( †) SERIAL McCulloch products are identified by a model number ( in this instance 1 - 800 - 521 - 8559 NUMBER MODEL BAR & ENGINE 600465 ) followed by a suffix number ( 00 ) . Suffix numbers denote MODEL NAME PREFIX NUMBER CHAIN SIZE variations in parts or assemblies used in the manufacture of this MS1846AV - 18 46cc product . Illustrated Parts Lists ( IPLs ) contain a PART NUMBER , DESCRIPTION , MS2046AV - - 20 46cc MONDAY - FRIDAY - 6 : 00 AM - 4 : 30 PM ( MST ) UNITS per assembly and STOCKING CODE for each part . M1849AV - - 18 49cc Stocking Codes are : www.mccullochpower.com MS2049 - - 20 49cc A - Dealer stocked . Fast to medium moving part . MAC 4600 11 - / 22 - 600465 - 00 18 46cc B - Distributor stocked . Medium to slow moving part . MAC 4600 11 - / 22 - 600465 - 01 20 46cc C - Factory stocked . Slow moving part . MAC 4600 11 - / 22 - 600465 - 02 16 46cc MAC 4600 11 - 600465 - 07 46cc MAC 4600 11 - 600465 - 09 46cc NOTE : The following explains symbols and footnotes in this IPL : MAC 4600 11 - 600465 - 12 46cc A dash preceding a PART NUMBER indicates that it ishe ( - ) a new part number , different from the one listed in t MAC 4900 11 - 600498 - 01 49cc previous IPL for this unit . MAC 4900 11 - / 22 - 600498 - 02 20 49cc USE ONLY MAC 4900 11 - 600498 - 03 49cc One or more dots ( . Spring , Starter ) preceding a partit ( . ) GENUINE DESCRIPTION indicates the part is included in the k MAC 4900 11 - 600498 - 08 49cc McCULLOCH or assembly described directly above the dot ( s ) . MAC 4900 11 - 600498 - 13 49cc REPLACEMENT PARTS MAC 5500 22 - 600555 - 00 55cc If four dashes appear in place of a PART NUMBER , the ( - - - - ) part is not available individually but is included in PM1846AV - - 18 46cc the next higher assembly or subassembly . PM2046AV - - 20 46cc PM1849AV - - 18 49cc ¿ ¡ Circled numbers preceding a nDESCRIPTIONformation footnote the part or assembly to additional i PM2049AV - - 20 49cc on the page . PROMAC 4700 22 - 600465 - 03 PROMAC 5000 22 - 600498 - 20 An asterisk denotes that choices follow or precede . ( * ) PROMAC 5500 22 - 600555 - 02 55cc Serial Number Prefix 21 - denotes CARB approved unit ( †) SILVER EAGLE 2818 - - all parts are interchangeable with Serial Number TORQUE SPECIFICATIONS ENGINE SPECIFICATIONS SILVER EAGLE 3020 Prefix 11 - . TIMBERBEAR 20 - - 20 49cc FASTENER FIG / TORQUE Displacement , cc ( ci ) . . . . . . . . . . 46cc ( 2.8ci ) The policy of McCulloch is one of continual improvement in design , TIMEBERBEAR 22 - 600555 - 01 55cc DESCRIPTION PART NO . ITEM ( IN / LBS ) LOCTITE . . . . . . . . . . . . . . . . . . . . . . . . . . 49cc ( 3.0ci ) manufacturing and engineering advancement wherever possible to C’Case to Fuel / Oil Tank 217937 1 / 36 55 - 60 262 assure still finer power tools . Hence , specifications , equipment colors , Bore , cc ( ci ) . . . . . . . . . . . . . . . . . 46cc , 1.69 in . ( 43mm ) design and manufacturer’s suggested list prices are subject to change Flywheel Nut 110961 3 / 22 175 - 185 242 . . . . . . . . . . . . . . . . . . . . . . . . . . 49cc - 1.74 in . ( 44mm ) without notice . McCulloch reserves the right to make such changes Ignition Screw 217936 3 / 29 45 - 50 242 without prior notification or obligation to backfit or supply backfit Spark Plug . . . . . . . . . . . . . . . . . . 92879 - 00 components for units previously shipped from the factory . MARCH 2003 Ign . Spacer Nut 322854 3 / 31 45 - 50 242 Spark Plug Gap . . . . . . . . . . . . . . 0.025 in . ( 0.635mm ) Spark Plug 92879 - 00 3 / 33 110 - 120 - - - - Starter Rope Length . . . . . . . . . . . 41 in . ( 104cm ) Muffler Screws 217935 3 / 33 45 - 50 262 Max RPM ( w / bar & chain ) . . . . . . 11,500 ILLUSTRATED PARTS LIST Muffler Nuts 216682 3 / 43 50 - 55 133A Clutch Engagement Speed . . . . . . 3,500 - 3,800 RPM Carb Boot Flange 219881 3 / 46 45 - 50 262 Fuel Mix . . . . . . . . . . . . . . . . . . . . 40 : 1 P.O . Box 31567 Carburetor Flange 111105 3 / 56 25 - 30 242 Fuel Tank Capacity . . . . . . . . . . . . . 11.8 fl . oz ( 349ml ) Tucson , Arizona 85751 - 1567 • U.S.A . C’Case to Cylinder 111095 3 / 73 70 - 80 262 Oil Tank Capacity . . . . . . . . . . . . . . 22.7 fl . oz ( 671ml ) © McCulloch 2003 P / N 211594 - 03
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GENERAL ASSEMBLY CARBURETOR ASSEMBLY FIGURE 1 FIGURE 6 – – 43 2 – – 21 – – 6 – – 44 – – 42 – – 21 – – – 22 – – 7 – – 45 – – 46 – – 8 – – 47 – – 9 – – 48 3 – – 23 23 – – – 10 – – 49 – – 24 – – 11 – – 50 70 41 – – – – 12 – – 51 6 – – – – 13 – – 52 6 5 – – 14 – – 53 – – 15 – – 54 69 7 – – 16 – – 55 4 – – 17 11 – – 56 14 – – 18 8 73 – – 19 66 68 – – 20 9 2 10 4 15 16 5 67 65 12 13 72 20 17 71 18 36 35 14 26 19 25 33 24 22 32 23 31 34 21 1 11 30 62 30 29 61 31 28 33 29 32 27 60 8 28 27 7 26 25 64 ITEM STK PART UNITS ITEM STK PART UNITS 34 9 13 NO . CODE NUMBER DESCRIPTION PER ASY NO . CODE NUMBER DESCRIPTION PER ASY 63 17 8 - B 322657 - 04 Carburetor , Walbro WT463 25 - - - - . Gasket , Metering Diaphragm 1 7 1 - - - - . Screw , Pump Cover 1 26 - - - - . Pin , Metering Lever 1 24 2 - - - - . Cover , Fuel Pump 1 27 - - - - . Lever , Metering 1 23 3 - - - - . Screw , Idle Adjustment 1 28 - - - - . Spring , Metering Lever 1 3 59 4 - - - - . Spring 1 29 - - - - . Screw , Metering Lever Pin 1 5 - - - - . Gasket , Fuel Pump 1 30 - - - - . Valve , Inlet Needle 1 55 6 - - - - . Diaphragm , Fuel Pump 1 31 - - - - . Plug , Welch 1 6 19 20 7 - - - - . Screen Fuel Inlet 1 32 - - - - . Plug , Welch 1 49 8 - - - - . Shaft Asy , Throttle 1 33 - - - - . Nozzle Asy , Check Valve 1 50 54 52 51 9 - - - - . Spring , Throttle Return 1 34 - - - - . O - ring , High Needle 1 53 14 10 - - - - . Shutter , Throttle 1 35 - - - - . Washer , High Needle 1 11 - - - - . Shaft Asy , Choke 1 36 - - - - . Needle , Idle 1 48 46 22 12 - - - - . Shutter , Choke 1 37 - - - - . Spring , Idle Needle 1 16 13 - - - - . Screw , Shutter and Choke 2 38 - - - - . Needle , High 1 15 56 21 14 - - - - . Ring , Shaft Retainer 1 39 - - - - . Spring , High Needle 1 47 59 18 58 15 - - - - . Lever , Throttle 1 40 - - - - . Limiter Cap , High Speed 1 10 12 44 / 45 16 - - - - . Spring , Choke Friction 1 41 - - - - . Limiter Cap , Low Speed 1 43 17 - - - - . Ball , Choke Friction 1 42 - - - - . Retainer , Limiter 1 35 18 - - - - . Plug 1 37 40 19 - - - - . Ring , Screen Retainer 1 36 20 - - - - . Screen , Check Valve 1 39 21 - - - - . Seat Asy , Check Valve 1 325520 Kit , Carburetor Repair , Walbro ( A1137WT ) 38 22 - - - - . Screw , Metering Cover 4 301042 Kit , Gasket / Diaphragm , Walbro ( B1110WT ) 23 - - - - . Cover , Metering Diaphragm 1 57 24 - - - - . Diaphragm Asy , Metering 1 2 7
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CHAIN BRAKE ASSEMBLY GENERAL ASSEMBLY FIGURE 4 FIGURE 1 ITEM STK PART UNITS ITEM STK PART UNITS ITEM STK PART UNITS – – 1 NO . CODE NUMBER DESCRIPTION PER ASY NO . CODE NUMBER DESCRIPTION PER ASY – – 3 – – 2 NO . CODE NUMBER DESCRIPTION PER ASY – – 4 – – 3 – – 1 A 1 - 58 A 300723 Chain Brake , Inertia ( Yellow ) 1 FIGURE 2 Powerhead Asy 1 217935 Screw , 10 - 24x . 5 Torx 1 – – 5 – – 6 2 C 110737 . Clip , “ U ” 1 2 - FIGURE 4 Chain Brake Asy 1 59 B 111068 Screw , 10 - 14x1.38 Torx 1 – – 7 3 - 3 - 60 C - - - - . Latch Asy , Chain Brake 1 FIGURE 5 Rear Handle Asy 1 322671 Handle , Front 1 – – 8 4 - - - - - . . Pin , Brake Band 1 4 - FIGURE 3 Bar Information 1 61 A 300292 Retainer , Nut 2 – – 9 5 - - - - - . . Pin , Latch 1 5 - FIGURE 3 Chain Information 1 62 A 218005 Nut , Sq 10 - 24 2 – – 10 6 - 6 B 63 C - - - - . Slider 1 300730 Fuel / Oil Tank Asy ( Black ) 1 111117 Screw , 10 - 14x1 Plast 2 1 – – – – 11 7 - - - - - . Pivot , Latch 1 7 A 322199 . Valve , Duckbill 2 64 C 300296 Screw , 10 - 24x . 5 PnHdTorx 2 – – 12 23 8 C 322886 . Screw , Band Anchor 1 8 A 300259 . Filter , Foam 2 65 C 301419 Top Cover Asy ( Black ) 1 9 – – 13 9 - 9 C 66 C - - - - . Flat , Brake 1 322859 . Retainer , Vent 1 111110 Screw , 10 - 14x2 2 – – 14 10 - - - - - Washer , “ D ” 1 10 B 322883 . Spacer 4 67 C 111109 Screw , 10 - 14 Torx Hd 1 10 – – 15 11 - - - - - . Waher , Spring 1 11 B 322647 . Hose , Pulse 1 68 A 300922 Air Cleaner Asy 1 – – 16 12 - 12 A 69 C - - - - . Lever Pivot 1 300869 . Pickup , Fuel 1 322659 Cover , Air Cleaner ( Black ) 1 – – 17 13 - - - - - . Pin , Spring Hook 1 13 A 301417 . Isolator Asy Handle 1 70 A 111099 Screw , k10 - 24x . 625 PnHdTorx 2 – – 18 6 19 22 11 14 C 323537 . Band , Brake 1 14 A 322860 . Hose , Fuel 1 71 C 302416 Isolator Asy 1 12 15 C 15 A 72 C 218079 . Ring , Retaining 1 224242 - 02 . Primer , Remote 1 323344 Cable Asy , AV Spring 1 16 B 217440 . Spring , Chain Brake 1 16 A 322861 . Hose , Primer 1 73 C 325172 Plate , Flange 1 21 20 17 B 218641 . Stop , Chain 1 17 B 111107 . Bolt , Bar 5 / 16 - 18 , Shoulder 2 18 B 18 C 111226 Screw , 10 - 24x . 62 TrHdTorx 3 218480 . Hose , Oil 1 3 19 B 301614 Spike 1 19 A 225062 . Pickup , Oil 1 5 7 20 C 111169 . Screw 2 20 B 322867 Hose , Fuel / Oil 1 11600465 - 00 11600465 - 01 21 A 218315 Nut , 10 - 24 2 21 A 301112 Fuel Cap Asy 1 4 11600465 - 02 11600465 - 07 21 15 16 22 B 219058 Label , Safety 1 22 - - - - - . Gasket 1 11600465 - 09 11600465 - 12 8 23 A 322885 Nut , Bar 5 / 16 - 18 2 23 A 300917 Oil Cap Asy 1 11600498 - 01 11600498 - 02 2 11600498 - 03 11600498 - 08 24 - - - - - . Gasket , Oil Cap 1 1 14 11600498 - 13 25 A 111142 O - Ring , . 013 1 13 18 26 B 322658 Washer , Bar Bolt 1 11600465 - 03 11600498 - 04 17 27 A 520001 - 33 Bar Adj Screw Nut & Ring 1 11600465 - 08 11600498 - 09 28 - - - - - . Nut , Bar Adjusting 1 29 C 322873 Plate , Bar 1 30 C 111143 Screw , 6 - 19 x . 375 1 31 C 301612 Plate , Bar Guide 2 32 C 322880 Lever , Choke 1 33 B 300728 Rod , Choke 1 34 C 323339 Plug , Pulse Hose 1 35 C 301615 Plate , Flange 1 36 A 217937 Screw , 10 - 24x1 Torx 4 REAR HANDLE ASSEMBLY FIGURE 5 37 C 322665 Precleaner Asy 1 38 A 223357 Screw , 8 - 16 Plast 1 – – 2 ITEM STK PART UNITS 39 B 105976 Washer , # 8 Plain 1 – – 3 NO . CODE NUMBER DESCRIPTION PER ASY 40 C 322666 Boot , Intake 1 – – 4 1 C 301916 Handle / Trigger Asy 1 * 41 C 300226 Starter Asy ( Yellow ) 1 – – 5 2 A 300727 . Cable , Throttle 1 42 C 301914 . Housing / Rope Guide Asy 1 – – 6 3 A 300297 . Washer , . 19idx . 68od 1 43 - - - - - . . Housing , Starter ( Yellow ) 1 – – 7 4 A 111180 . Screw , 8 - 16x . 5 Torx 1 44 - - - - - . . Rope Guide 1 – – 8 5 C 322870 . Release , Trigger 1 45 - - - - - . Tube , Rope Guide 1 – – 12 – – 9 1 – – 6 C 322869 . Trigger 1 46 A 300475 . Spring , Starter Rewind 1 – – 13 – – 10 7 C 322875 . Spring , Trigger 1 47 B 300228 . Pulley , Starter 1 – – 14 – – 11 8 C 322876 . Spring , High Idle 1 48 B 300229 . Pawl , Starter 2 – – – – 15 – – 12 9 C 322874 . Latch , High Idle 1 – – 16 – – 19 49 C 300230 . Plate , Starter 1 11 10 C 322878 . Grommet , Throttle 1 – – 17 – – 20 50 C 300231 . Spring , Friction 1 11 C 322670 . Frame , Rear 1 – – 18 – – 21 8 51 C 300232 . Spacer , Starter 1 9 12 C 301397 . Cover Asy , Handle 1 2 – – 22 52 C 300233 . Screw , Shoulder 1 13 B 224245 . . Button , Stop Switch 1 6 – – 23 53 A 300234 . Rope , Starter 45 ” 1 14 B 62451 . . Contact , Ignition Switch 1 10 54 A 87851 . Handle , Starter 1 16 15 B 322851 . . Wire Asy 1 5 13 55 A 223944 . Bushing , Starter 1 17 3 16 B 111069 . . Screw , 8 - 16x . 375 Plast 2 18 56 B 111157 . Spacer , 10x . 135 1 4 7 17 C 322881 . . Contact , Ground 1 57 C 111111 Screw , 10 - 14x . 625 Torx 3 18 A 322852 . . Wire , Ground Asy 1 14 23 19 A 111113 . Screw , Rear Frame Cover 3 22 15 20 A 111180 . Screw , 8 - 16x . 5 Torx 1 16 21 A 300299 . Screw , 8 - 16x1 Torx Plast 1 22 A 301417 . Isolator Asy , Handle 1 12 21 23 C 323344 . Safety Cable Asy 1 20 19 6 3
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POWERHEAD ASSEMBLY POWERHEAD ASSEMBLY FIGURE 2 FIGURE 2 ITEM STK PART UNITS ITEM STK PART UNITS NO . CODE NUMBER DESCRIPTION PER ASY NO . CODE NUMBER DESCRIPTION PER ASY 48 49 1 A 55 C 301912 Kit , Oil Pump Asy 1 322654 Spring , Garter 1 2 A - - - - . Pump Asy , Oil 1 56 C 111105 Screw , 10 - 24 , Carb Clamp 2 50 3 A 57 A 322182 . . Fitting 2 216635 Washer , Special # 10 2 4 C 322635 . . Screw , Adj 1 58 - - - - - C’shaft / ConRod / Bearing Asy 1 47 43 5 B 301913 . Kit , Gear / Plunger Asy 1 59 C 215946 . Bearing , Ball 2 6 - 60 A - - - - . . Piston / Gear Asy 1 300222 . Seal , Crankshaft 2 42 55 7 - - - - - . . Spring , Comp 1 61 A 102164 Key , Wdf # 206 1 41 8 - - - - - . . O - ring 1 62 - - - - - Crankcase / Fitting Asy 1 9 A 63 - 110582 . . Washer 1 - - - - . Fitting , Pulse Line 1 10 B 111162 O - Ring , 1.625x . 06 1 64 C 323395 - 01 Clamp , Wire , Hose 1 / 4 ” 1 51 52 11 A 323435 Washer , Felt 1 65 B 323433 Conduit , Flex 1 40 53 12 B 66 - 322864 Connector , Oil Pump 1 - - - - Piston Asy , 46cc 1 13 C 322662 Gear , Worm 1 66 - - - - - Piston Asy , 49cc 1 14 C 322884 Washer 1 67 - - - - - . Pin , Piston 1 54 39 15 B 68 - 323126 Seal , Felt 1 - - - - . Bearing , Piston Pin 1 57 16 C 111108 Screw , # 8 Plast 3 69 - - - - - . Ring , Retaining 2 56 17 C 322856 Washer , Clutch Drum 1 70 - - - - - . Ring , Piston , 46cc 1 18 C 70 - 111104 Bearing , 10x13x13mm 1 - - - - . Ring , Piston , 49cc 1 19 A 301338 Drum / Sprocket Asy , . 325x8T 1 71 A 300292 Retainer , Nut 4 38 * 20 A 300726 - 01 Clutch Asy , Old , Threaded 1 72 A 218005 Nut , 10 - 24 Sq 4 20 A 9228 - 310210 Clutch Asy , New , No Thread 1 73 C 111095 Screw , 10 - 24x2.75 Torx 4 33 37 21 A 322848 Flywheel 1 74 A 216683 Washer , # 10 Special 4 22 A 110961 Nut , Hex 5 / 16 - 24 1 75 B 301926 Short Block Asy 1 23 B 301759 Ignition Asy 1 75 28 34 24 A 223884 . Kit , Spark Plug Wire 1 36 25 A 102556 . . Connector , Spark 1 25 11600465 - 00 11600465 - 01 26 A 95266 . . Boot , Spark Plug 1 11600465 - 02 11600465 - 03 27 24 27 A 215533 - 01 . . Grommet , H / T Lead 1 11600465 - 07 11600465 - 08 26 28 A 110995 . . Grommet , S / Plug Wire 1 11600498 - 01 11600498 - 02 45 29 A 217936 Screw , Tr 10 - 24x . 75 Torx 1 11600498 - 03 11600498 - 04 46 30 C 322881 Contact , Ground 1 11600498 - 08 11600498 - 08 23 31 B 322854 Spacer , Nut 10 - 24x . 834 1 32 B 322855 Stud , 10 - 24x1.105 1 11600465 - 09 11600465 - 12 44 32 31 33 A 92879 Spark Plug , RDJ8J 1 11600498 - 13 70 34 C 322853 Baffle , Muffler Gasket 1 30 20 11600465 - 00 11600465 - 01 35 C 300923 Muffler Asy 1 29 11600465 - 02 11600465 - 03 72 36 C 300720 . Screw , Muffler 2 11600465 - 07 11600465 - 08 19 71 37 - - - - - . Body Asy , Muffler 1 11600465 - 09 11600465 - 12 66 38 A 217935 . Screw , 10 - 24x . 5 Tr Torx 1 11600498 - 01 11600498 - 02 16 17 12 39 - - - - - . Baffle , Muffler 1 65 67 11600498 - 03 11600498 - 04 40 B 300719 . Screen , Spark Arrester 1 11600498 - 08 11600498 - 09 41 - - - - - . Body , Muffler , Outer 1 69 3 11600498 - 13 64 42 B 301609 . Lock Plate 1 Not used 43 A 216649 . Nut , 10 - 24 Hex Lock 2 18 2 62 – – 24 44 C 322655 Eyelet , Boot 1 14 – – 25 – – 23 – – 58 45 C 322649 Flange , Boot 1 23 – – 11 63 – – – – 26 – – 24 58 – – – – 59 46 B 219881 Screw , 10 - 24x . 62 TrHdTorx 2 – – 27 – – 60 47 C 322648 Boot , Carburetor 1 – – 28 68 48 C 322656 Eyelet , Carburetor 1 10 49 C 322650 Flange , Carburetor 1 3 8 58 50 A 323536 Gasket , Carburetor 1 9 4 7 51 C 322879 Boot , Carburetor 1 13 6 52 - FIGURE 6 Carburetor Asy 1 61 60 53 C 322652 Bracket , Carburetor 1 15 59 54 C 322653 Boot , Intake 1 59 – – 2 21 60 – – 3 – – 2 – – – – 4 – – 36 – – 62 62 – – – – 37 – – 63 BAR AND CHAIN INFORMATION – – 6 FIGURE 3 – – 38 – – 7 – – 39 – – 5 – – BAR AND CHAIN BAR PART CHAIN CHAIN SERVICE TOOLS – – 66 35 – – – – 8 62 – – 40 – – 10 – – 67 SIZE NUMBER PART NUMBER SPECIFICATIONS FILE AND GUIDE PART No . FILE PART No . 1 – – – – 9 – – 41 – – 11 66 – – – 68 16 ” 323219 - 33 323218 - 33 – – 42 – – 12 – – 69 – – 42 – – 13 – – 70 18 ” 323215 - 33 323214 - 33 PMG320GLX 301944 - 33 219161 - 33 – – 14 74 – – 15 20 ” 323217 - 33 323216 - 33 73 22 4 5
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POWERHEAD ASSEMBLY POWERHEAD ASSEMBLY FIGURE 2 FIGURE 2 ITEM STK PART UNITS ITEM STK PART UNITS NO . CODE NUMBER DESCRIPTION PER ASY NO . CODE NUMBER DESCRIPTION PER ASY 48 49 1 A 55 C 301912 Kit , Oil Pump Asy 1 322654 Spring , Garter 1 2 A - - - - . Pump Asy , Oil 1 56 C 111105 Screw , 10 - 24 , Carb Clamp 2 50 3 A 57 A 322182 . . Fitting 2 216635 Washer , Special # 10 2 4 C 322635 . . Screw , Adj 1 58 - - - - - C’shaft / ConRod / Bearing Asy 1 47 43 5 B 301913 . Kit , Gear / Plunger Asy 1 59 C 215946 . Bearing , Ball 2 6 - 60 A - - - - . . Piston / Gear Asy 1 300222 . Seal , Crankshaft 2 42 55 7 - - - - - . . Spring , Comp 1 61 A 102164 Key , Wdf # 206 1 41 8 - - - - - . . O - ring 1 62 - - - - - Crankcase / Fitting Asy 1 9 A 63 - 110582 . . Washer 1 - - - - . Fitting , Pulse Line 1 10 B 111162 O - Ring , 1.625x . 06 1 64 C 323395 - 01 Clamp , Wire , Hose 1 / 4 ” 1 51 52 11 A 323435 Washer , Felt 1 65 B 323433 Conduit , Flex 1 40 53 12 B 66 - 322864 Connector , Oil Pump 1 - - - - Piston Asy , 46cc 1 13 C 322662 Gear , Worm 1 66 - - - - - Piston Asy , 49cc 1 14 C 322884 Washer 1 67 - - - - - . Pin , Piston 1 54 39 15 B 68 - 323126 Seal , Felt 1 - - - - . Bearing , Piston Pin 1 57 16 C 111108 Screw , # 8 Plast 3 69 - - - - - . Ring , Retaining 2 56 17 C 322856 Washer , Clutch Drum 1 70 - - - - - . Ring , Piston , 46cc 1 18 C 70 - 111104 Bearing , 10x13x13mm 1 - - - - . Ring , Piston , 49cc 1 19 A 301338 Drum / Sprocket Asy , . 325x8T 1 71 A 300292 Retainer , Nut 4 38 * 20 A 300726 - 01 Clutch Asy , Old , Threaded 1 72 A 218005 Nut , 10 - 24 Sq 4 20 A 9228 - 310210 Clutch Asy , New , No Thread 1 73 C 111095 Screw , 10 - 24x2.75 Torx 4 33 37 21 A 322848 Flywheel 1 74 A 216683 Washer , # 10 Special 4 22 A 110961 Nut , Hex 5 / 16 - 24 1 75 B 301926 Short Block Asy 1 23 B 301759 Ignition Asy 1 75 28 34 24 A 223884 . Kit , Spark Plug Wire 1 36 25 A 102556 . . Connector , Spark 1 25 11600465 - 00 11600465 - 01 26 A 95266 . . Boot , Spark Plug 1 11600465 - 02 11600465 - 03 27 24 27 A 215533 - 01 . . Grommet , H / T Lead 1 11600465 - 07 11600465 - 08 26 28 A 110995 . . Grommet , S / Plug Wire 1 11600498 - 01 11600498 - 02 45 29 A 217936 Screw , Tr 10 - 24x . 75 Torx 1 11600498 - 03 11600498 - 04 46 30 C 322881 Contact , Ground 1 11600498 - 08 11600498 - 08 23 31 B 322854 Spacer , Nut 10 - 24x . 834 1 32 B 322855 Stud , 10 - 24x1.105 1 11600465 - 09 11600465 - 12 44 32 31 33 A 92879 Spark Plug , RDJ8J 1 11600498 - 13 70 34 C 322853 Baffle , Muffler Gasket 1 30 20 11600465 - 00 11600465 - 01 35 C 300923 Muffler Asy 1 29 11600465 - 02 11600465 - 03 72 36 C 300720 . Screw , Muffler 2 11600465 - 07 11600465 - 08 19 71 37 - - - - - . Body Asy , Muffler 1 11600465 - 09 11600465 - 12 66 38 A 217935 . Screw , 10 - 24x . 5 Tr Torx 1 11600498 - 01 11600498 - 02 16 17 12 39 - - - - - . Baffle , Muffler 1 65 67 11600498 - 03 11600498 - 04 40 B 300719 . Screen , Spark Arrester 1 11600498 - 08 11600498 - 09 41 - - - - - . Body , Muffler , Outer 1 69 3 11600498 - 13 64 42 B 301609 . Lock Plate 1 Not used 43 A 216649 . Nut , 10 - 24 Hex Lock 2 18 2 62 – – 24 44 C 322655 Eyelet , Boot 1 14 – – 25 – – 23 – – 58 45 C 322649 Flange , Boot 1 23 – – 11 63 – – – – 26 – – 24 58 – – – – 59 46 B 219881 Screw , 10 - 24x . 62 TrHdTorx 2 – – 27 – – 60 47 C 322648 Boot , Carburetor 1 – – 28 68 48 C 322656 Eyelet , Carburetor 1 10 49 C 322650 Flange , Carburetor 1 3 8 58 50 A 323536 Gasket , Carburetor 1 9 4 7 51 C 322879 Boot , Carburetor 1 13 6 52 - FIGURE 6 Carburetor Asy 1 61 60 53 C 322652 Bracket , Carburetor 1 15 59 54 C 322653 Boot , Intake 1 59 – – 2 21 60 – – 3 – – 2 – – – – 4 – – 36 – – 62 62 – – – – 37 – – 63 BAR AND CHAIN INFORMATION – – 6 FIGURE 3 – – 38 – – 7 – – 39 – – 5 – – BAR AND CHAIN BAR PART CHAIN CHAIN SERVICE TOOLS – – 66 35 – – – – 8 62 – – 40 – – 10 – – 67 SIZE NUMBER PART NUMBER SPECIFICATIONS FILE AND GUIDE PART No . FILE PART No . 1 – – – – 9 – – 41 – – 11 66 – – – 68 16 ” 323219 - 33 323218 - 33 – – 42 – – 12 – – 69 – – 42 – – 13 – – 70 18 ” 323215 - 33 323214 - 33 PMG320GLX 301944 - 33 219161 - 33 – – 14 74 – – 15 20 ” 323217 - 33 323216 - 33 73 22 4 5
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CHAIN BRAKE ASSEMBLY GENERAL ASSEMBLY FIGURE 4 FIGURE 1 ITEM STK PART UNITS ITEM STK PART UNITS ITEM STK PART UNITS – – 1 NO . CODE NUMBER DESCRIPTION PER ASY NO . CODE NUMBER DESCRIPTION PER ASY – – 3 – – 2 NO . CODE NUMBER DESCRIPTION PER ASY – – 4 – – 3 – – 1 A 1 - 58 A 300723 Chain Brake , Inertia ( Yellow ) 1 FIGURE 2 Powerhead Asy 1 217935 Screw , 10 - 24x . 5 Torx 1 – – 5 – – 6 2 C 110737 . Clip , “ U ” 1 2 - FIGURE 4 Chain Brake Asy 1 59 B 111068 Screw , 10 - 14x1.38 Torx 1 – – 7 3 - 3 - 60 C - - - - . Latch Asy , Chain Brake 1 FIGURE 5 Rear Handle Asy 1 322671 Handle , Front 1 – – 8 4 - - - - - . . Pin , Brake Band 1 4 - FIGURE 3 Bar Information 1 61 A 300292 Retainer , Nut 2 – – 9 5 - - - - - . . Pin , Latch 1 5 - FIGURE 3 Chain Information 1 62 A 218005 Nut , Sq 10 - 24 2 – – 10 6 - 6 B 63 C - - - - . Slider 1 300730 Fuel / Oil Tank Asy ( Black ) 1 111117 Screw , 10 - 14x1 Plast 2 1 – – – – 11 7 - - - - - . Pivot , Latch 1 7 A 322199 . Valve , Duckbill 2 64 C 300296 Screw , 10 - 24x . 5 PnHdTorx 2 – – 12 23 8 C 322886 . Screw , Band Anchor 1 8 A 300259 . Filter , Foam 2 65 C 301419 Top Cover Asy ( Black ) 1 9 – – 13 9 - 9 C 66 C - - - - . Flat , Brake 1 322859 . Retainer , Vent 1 111110 Screw , 10 - 14x2 2 – – 14 10 - - - - - Washer , “ D ” 1 10 B 322883 . Spacer 4 67 C 111109 Screw , 10 - 14 Torx Hd 1 10 – – 15 11 - - - - - . Waher , Spring 1 11 B 322647 . Hose , Pulse 1 68 A 300922 Air Cleaner Asy 1 – – 16 12 - 12 A 69 C - - - - . Lever Pivot 1 300869 . Pickup , Fuel 1 322659 Cover , Air Cleaner ( Black ) 1 – – 17 13 - - - - - . Pin , Spring Hook 1 13 A 301417 . Isolator Asy Handle 1 70 A 111099 Screw , k10 - 24x . 625 PnHdTorx 2 – – 18 6 19 22 11 14 C 323537 . Band , Brake 1 14 A 322860 . Hose , Fuel 1 71 C 302416 Isolator Asy 1 12 15 C 15 A 72 C 218079 . Ring , Retaining 1 224242 - 02 . Primer , Remote 1 323344 Cable Asy , AV Spring 1 16 B 217440 . Spring , Chain Brake 1 16 A 322861 . Hose , Primer 1 73 C 325172 Plate , Flange 1 21 20 17 B 218641 . Stop , Chain 1 17 B 111107 . Bolt , Bar 5 / 16 - 18 , Shoulder 2 18 B 18 C 111226 Screw , 10 - 24x . 62 TrHdTorx 3 218480 . Hose , Oil 1 3 19 B 301614 Spike 1 19 A 225062 . Pickup , Oil 1 5 7 20 C 111169 . Screw 2 20 B 322867 Hose , Fuel / Oil 1 11600465 - 00 11600465 - 01 21 A 218315 Nut , 10 - 24 2 21 A 301112 Fuel Cap Asy 1 4 11600465 - 02 11600465 - 07 21 15 16 22 B 219058 Label , Safety 1 22 - - - - - . Gasket 1 11600465 - 09 11600465 - 12 8 23 A 322885 Nut , Bar 5 / 16 - 18 2 23 A 300917 Oil Cap Asy 1 11600498 - 01 11600498 - 02 2 11600498 - 03 11600498 - 08 24 - - - - - . Gasket , Oil Cap 1 1 14 11600498 - 13 25 A 111142 O - Ring , . 013 1 13 18 26 B 322658 Washer , Bar Bolt 1 11600465 - 03 11600498 - 04 17 27 A 520001 - 33 Bar Adj Screw Nut & Ring 1 11600465 - 08 11600498 - 09 28 - - - - - . Nut , Bar Adjusting 1 29 C 322873 Plate , Bar 1 30 C 111143 Screw , 6 - 19 x . 375 1 31 C 301612 Plate , Bar Guide 2 32 C 322880 Lever , Choke 1 33 B 300728 Rod , Choke 1 34 C 323339 Plug , Pulse Hose 1 35 C 301615 Plate , Flange 1 36 A 217937 Screw , 10 - 24x1 Torx 4 REAR HANDLE ASSEMBLY FIGURE 5 37 C 322665 Precleaner Asy 1 38 A 223357 Screw , 8 - 16 Plast 1 – – 2 ITEM STK PART UNITS 39 B 105976 Washer , # 8 Plain 1 – – 3 NO . CODE NUMBER DESCRIPTION PER ASY 40 C 322666 Boot , Intake 1 – – 4 1 C 301916 Handle / Trigger Asy 1 * 41 C 300226 Starter Asy ( Yellow ) 1 – – 5 2 A 300727 . Cable , Throttle 1 42 C 301914 . Housing / Rope Guide Asy 1 – – 6 3 A 300297 . Washer , . 19idx . 68od 1 43 - - - - - . . Housing , Starter ( Yellow ) 1 – – 7 4 A 111180 . Screw , 8 - 16x . 5 Torx 1 44 - - - - - . . Rope Guide 1 – – 8 5 C 322870 . Release , Trigger 1 45 - - - - - . Tube , Rope Guide 1 – – 12 – – 9 1 – – 6 C 322869 . Trigger 1 46 A 300475 . Spring , Starter Rewind 1 – – 13 – – 10 7 C 322875 . Spring , Trigger 1 47 B 300228 . Pulley , Starter 1 – – 14 – – 11 8 C 322876 . Spring , High Idle 1 48 B 300229 . Pawl , Starter 2 – – – – 15 – – 12 9 C 322874 . Latch , High Idle 1 – – 16 – – 19 49 C 300230 . Plate , Starter 1 11 10 C 322878 . Grommet , Throttle 1 – – 17 – – 20 50 C 300231 . Spring , Friction 1 11 C 322670 . Frame , Rear 1 – – 18 – – 21 8 51 C 300232 . Spacer , Starter 1 9 12 C 301397 . Cover Asy , Handle 1 2 – – 22 52 C 300233 . Screw , Shoulder 1 13 B 224245 . . Button , Stop Switch 1 6 – – 23 53 A 300234 . Rope , Starter 45 ” 1 14 B 62451 . . Contact , Ignition Switch 1 10 54 A 87851 . Handle , Starter 1 16 15 B 322851 . . Wire Asy 1 5 13 55 A 223944 . Bushing , Starter 1 17 3 16 B 111069 . . Screw , 8 - 16x . 375 Plast 2 18 56 B 111157 . Spacer , 10x . 135 1 4 7 17 C 322881 . . Contact , Ground 1 57 C 111111 Screw , 10 - 14x . 625 Torx 3 18 A 322852 . . Wire , Ground Asy 1 14 23 19 A 111113 . Screw , Rear Frame Cover 3 22 15 20 A 111180 . Screw , 8 - 16x . 5 Torx 1 16 21 A 300299 . Screw , 8 - 16x1 Torx Plast 1 22 A 301417 . Isolator Asy , Handle 1 12 21 23 C 323344 . Safety Cable Asy 1 20 19 6 3
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GENERAL ASSEMBLY CARBURETOR ASSEMBLY FIGURE 1 FIGURE 6 – – 43 2 – – 21 – – 6 – – 44 – – 42 – – 21 – – – 22 – – 7 – – 45 – – 46 – – 8 – – 47 – – 9 – – 48 3 – – 23 23 – – – 10 – – 49 – – 24 – – 11 – – 50 70 41 – – – – 12 – – 51 6 – – – – 13 – – 52 6 5 – – 14 – – 53 – – 15 – – 54 69 7 – – 16 – – 55 4 – – 17 11 – – 56 14 – – 18 8 73 – – 19 66 68 – – 20 9 2 10 4 15 16 5 67 65 12 13 72 20 17 71 18 36 35 14 26 19 25 33 24 22 32 23 31 34 21 1 11 30 62 30 29 61 31 28 33 29 32 27 60 8 28 27 7 26 25 64 ITEM STK PART UNITS ITEM STK PART UNITS 34 9 13 NO . CODE NUMBER DESCRIPTION PER ASY NO . CODE NUMBER DESCRIPTION PER ASY 63 17 8 - B 322657 - 04 Carburetor , Walbro WT463 25 - - - - . Gasket , Metering Diaphragm 1 7 1 - - - - . Screw , Pump Cover 1 26 - - - - . Pin , Metering Lever 1 24 2 - - - - . Cover , Fuel Pump 1 27 - - - - . Lever , Metering 1 23 3 - - - - . Screw , Idle Adjustment 1 28 - - - - . Spring , Metering Lever 1 3 59 4 - - - - . Spring 1 29 - - - - . Screw , Metering Lever Pin 1 5 - - - - . Gasket , Fuel Pump 1 30 - - - - . Valve , Inlet Needle 1 55 6 - - - - . Diaphragm , Fuel Pump 1 31 - - - - . Plug , Welch 1 6 19 20 7 - - - - . Screen Fuel Inlet 1 32 - - - - . Plug , Welch 1 49 8 - - - - . Shaft Asy , Throttle 1 33 - - - - . Nozzle Asy , Check Valve 1 50 54 52 51 9 - - - - . Spring , Throttle Return 1 34 - - - - . O - ring , High Needle 1 53 14 10 - - - - . Shutter , Throttle 1 35 - - - - . Washer , High Needle 1 11 - - - - . Shaft Asy , Choke 1 36 - - - - . Needle , Idle 1 48 46 22 12 - - - - . Shutter , Choke 1 37 - - - - . Spring , Idle Needle 1 16 13 - - - - . Screw , Shutter and Choke 2 38 - - - - . Needle , High 1 15 56 21 14 - - - - . Ring , Shaft Retainer 1 39 - - - - . Spring , High Needle 1 47 59 18 58 15 - - - - . Lever , Throttle 1 40 - - - - . Limiter Cap , High Speed 1 10 12 44 / 45 16 - - - - . Spring , Choke Friction 1 41 - - - - . Limiter Cap , Low Speed 1 43 17 - - - - . Ball , Choke Friction 1 42 - - - - . Retainer , Limiter 1 35 18 - - - - . Plug 1 37 40 19 - - - - . Ring , Screen Retainer 1 36 20 - - - - . Screen , Check Valve 1 39 21 - - - - . Seat Asy , Check Valve 1 325520 Kit , Carburetor Repair , Walbro ( A1137WT ) 38 22 - - - - . Screw , Metering Cover 4 301042 Kit , Gasket / Diaphragm , Walbro ( B1110WT ) 23 - - - - . Cover , Metering Diaphragm 1 57 24 - - - - . Diaphragm Asy , Metering 1 2 7
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46 / 49cc P.O . Box 31567 • Tucson Arizona 85751 - 1567 • U.S.A . GASOLINE POWERED ANTI - VIBRATION ( AV ) CHAIN SAWS • MANUFACTURING • SALES • SERVICE • FOR WARRANTY OR SERVICE , CONTACT THE NEAREST McCULLOCH AUTHORIZED SERVICE CENTER LISTED UNDER ‘ SAWS ’ IN YOUR TELEPHONE DIRECTORY YELLOW PAGES . IF FURTHER ASSISTANCE IS REQUIRED , CALL THIS TOLL - FREE HOT LINE . PLEASE REFERENCE YOUR MODEL AND SERIAL NUMBER . ( †) SERIAL McCulloch products are identified by a model number ( in this instance 1 - 800 - 521 - 8559 NUMBER MODEL BAR & ENGINE 600465 ) followed by a suffix number ( 00 ) . Suffix numbers denote MODEL NAME PREFIX NUMBER CHAIN SIZE variations in parts or assemblies used in the manufacture of this MS1846AV - 18 46cc product . Illustrated Parts Lists ( IPLs ) contain a PART NUMBER , DESCRIPTION , MS2046AV - - 20 46cc MONDAY - FRIDAY - 6 : 00 AM - 4 : 30 PM ( MST ) UNITS per assembly and STOCKING CODE for each part . M1849AV - - 18 49cc Stocking Codes are : www.mccullochpower.com MS2049 - - 20 49cc A - Dealer stocked . Fast to medium moving part . MAC 4600 11 - / 22 - 600465 - 00 18 46cc B - Distributor stocked . Medium to slow moving part . MAC 4600 11 - / 22 - 600465 - 01 20 46cc C - Factory stocked . Slow moving part . MAC 4600 11 - / 22 - 600465 - 02 16 46cc MAC 4600 11 - 600465 - 07 46cc MAC 4600 11 - 600465 - 09 46cc NOTE : The following explains symbols and footnotes in this IPL : MAC 4600 11 - 600465 - 12 46cc A dash preceding a PART NUMBER indicates that it ishe ( - ) a new part number , different from the one listed in t MAC 4900 11 - 600498 - 01 49cc previous IPL for this unit . MAC 4900 11 - / 22 - 600498 - 02 20 49cc USE ONLY MAC 4900 11 - 600498 - 03 49cc One or more dots ( . Spring , Starter ) preceding a partit ( . ) GENUINE DESCRIPTION indicates the part is included in the k MAC 4900 11 - 600498 - 08 49cc McCULLOCH or assembly described directly above the dot ( s ) . MAC 4900 11 - 600498 - 13 49cc REPLACEMENT PARTS MAC 5500 22 - 600555 - 00 55cc If four dashes appear in place of a PART NUMBER , the ( - - - - ) part is not available individually but is included in PM1846AV - - 18 46cc the next higher assembly or subassembly . PM2046AV - - 20 46cc PM1849AV - - 18 49cc ¿ ¡ Circled numbers preceding a nDESCRIPTIONformation footnote the part or assembly to additional i PM2049AV - - 20 49cc on the page . PROMAC 4700 22 - 600465 - 03 PROMAC 5000 22 - 600498 - 20 An asterisk denotes that choices follow or precede . ( * ) PROMAC 5500 22 - 600555 - 02 55cc Serial Number Prefix 21 - denotes CARB approved unit ( †) SILVER EAGLE 2818 - - all parts are interchangeable with Serial Number TORQUE SPECIFICATIONS ENGINE SPECIFICATIONS SILVER EAGLE 3020 Prefix 11 - . TIMBERBEAR 20 - - 20 49cc FASTENER FIG / TORQUE Displacement , cc ( ci ) . . . . . . . . . . 46cc ( 2.8ci ) The policy of McCulloch is one of continual improvement in design , TIMEBERBEAR 22 - 600555 - 01 55cc DESCRIPTION PART NO . ITEM ( IN / LBS ) LOCTITE . . . . . . . . . . . . . . . . . . . . . . . . . . 49cc ( 3.0ci ) manufacturing and engineering advancement wherever possible to C’Case to Fuel / Oil Tank 217937 1 / 36 55 - 60 262 assure still finer power tools . Hence , specifications , equipment colors , Bore , cc ( ci ) . . . . . . . . . . . . . . . . . 46cc , 1.69 in . ( 43mm ) design and manufacturer’s suggested list prices are subject to change Flywheel Nut 110961 3 / 22 175 - 185 242 . . . . . . . . . . . . . . . . . . . . . . . . . . 49cc - 1.74 in . ( 44mm ) without notice . McCulloch reserves the right to make such changes Ignition Screw 217936 3 / 29 45 - 50 242 without prior notification or obligation to backfit or supply backfit Spark Plug . . . . . . . . . . . . . . . . . . 92879 - 00 components for units previously shipped from the factory . MARCH 2003 Ign . Spacer Nut 322854 3 / 31 45 - 50 242 Spark Plug Gap . . . . . . . . . . . . . . 0.025 in . ( 0.635mm ) Spark Plug 92879 - 00 3 / 33 110 - 120 - - - - Starter Rope Length . . . . . . . . . . . 41 in . ( 104cm ) Muffler Screws 217935 3 / 33 45 - 50 262 Max RPM ( w / bar & chain ) . . . . . . 11,500 ILLUSTRATED PARTS LIST Muffler Nuts 216682 3 / 43 50 - 55 133A Clutch Engagement Speed . . . . . . 3,500 - 3,800 RPM Carb Boot Flange 219881 3 / 46 45 - 50 262 Fuel Mix . . . . . . . . . . . . . . . . . . . . 40 : 1 P.O . Box 31567 Carburetor Flange 111105 3 / 56 25 - 30 242 Fuel Tank Capacity . . . . . . . . . . . . . 11.8 fl . oz ( 349ml ) Tucson , Arizona 85751 - 1567 • U.S.A . C’Case to Cylinder 111095 3 / 73 70 - 80 262 Oil Tank Capacity . . . . . . . . . . . . . . 22.7 fl . oz ( 671ml ) © McCulloch 2003 P / N 211594 - 03